Two explosions rock Iranian Embassy in Beirut.

Two explosions rock Iranian Embassy in Beirut.

Two explosions rock Iranian Embassy in Beirut.

People escape as a car bomb hits the Iranian embassy, Nov. 19, 2013, in Beirut, Lebanon. At least 20 people have been reported killed in the blast.

Stringer/Anadolu Agency/Getty Images

Two explosions rock Iranian Embassy in Beirut.

Civil Defence personnel extinguish a fire on cars at the site of the explosions near the Iranian embassy in Beirut, Nov. 19, 2013. The cultural attache Ebrahim Ansari at the Iranian embassy in Beirut was among at least 23 people killed in the two explosions.

Ahmad Yassine/Reuters

Two explosions rock Iranian Embassy in Beirut.

Two Lebanese men react in front of burned cars, at the scene where two explosions have struck near the Iranian Embassy killing many in Beirut, Lebanon, Nov. 19, 2013. The area is a stronghold of the militant Hezbollah group, which is a main ally of Syrian President Bashar Assad in the civil war next door. It's not clear if the blasts are related to Syria's civil war.

Hussein Malla/AP Photo

Two explosions rock Iranian Embassy in Beirut.

Lebanese men stand in front of burned cars, at the scene where two explosions struck near the Iranian Embassy killing many in Beirut, Lebanon, Nov. 19, 2013.

Hussein Malla/AP Photo

Two explosions rock Iranian Embassy in Beirut.

People lay injured after two huge blasts near the Iran Embassy, Nov. 19, 2013, in Beirut, Lebanon.

Stringer/Anadolu Agency/Getty Images

Two explosions rock Iranian Embassy in Beirut.

Lebanese citizens carry a dead body, at the scene where two explosions have struck near the Iranian Embassy killing many in Beirut, Lebanon, Nov. 19, 2013.

Hussein Malla/AP Photo

Two explosions rock Iranian Embassy in Beirut.

Lebanese rescue teams and security forces evacuate an injured man at the site of a blast in Bir Hassan neighbourhood in Beirut, Nov. 19, 2013. At least 22 people were killed in a double bomb attack outside the Iranian embassy in Beirut, including an Iranian cultural adviser.

AFP/Getty Images

Two explosions rock Iranian Embassy in Beirut.

A Lebanese man helps an injured domestic worker, at the scene where two explosions struck near the Iranian Embassy killing many in Beirut, Lebanon, Nov. 19, 2013.

Hussein Malla/AP Photo

Two explosions rock Iranian Embassy in Beirut.

A Lebanese soldier and citizens help an injured man on the ground, at the scene where two explosions struck near the Iranian Embassy killing many, in Beirut, Lebanon, Nov. 19, 2013.

Hussein Malla/AP Photo

Two explosions rock Iranian Embassy in Beirut.

Civil Defence personnel and civilians gather at the site of explosions as a dead boy lies on the ground near the Iranian embassy in Beirut, Nov. 19, 2013. Two explosions targeting the Iranian embassy hit the Lebanese capital Beirut, killing at least 23 people, including Iranian cultural attache Ebrahim Ansari, and damaging buildings around the embassy compound.

Issam Kobeisi/Reuters

Two explosions rock Iranian Embassy in Beirut.

Remnants and debris of two huge explosions that struck near the Iran Embassy, Nov. 19, 2013, in Beirut, Lebanon.

Bilal Jawich/Anadolu Agency/Getty Images

Two explosions rock Iranian Embassy in Beirut.

Lebanese army investigators inspect the scene where two explosions have struck near the Iranian Embassy killing nearly two dozen, in Beirut, Lebanon, Nov. 19, 2013. The blasts in south Beirut's neighborhood of Janah also caused extensive damage on the nearby buildings and the Iranian mission.